Kiff VandenHeuvel Grug Voice Ally Dixon Eep Voice Darin Brooks Guy Voice Amy Landecker Actor Artemis Pebdani Gran Voice A.J. LoCascio Thunk Voice Amy Rosoff Hope Voice Matthew Waterson Phil Voice Stephanie Arnett Director Steve Trenbirth Director Scooter Tidwell Director Mark Banker Executive Producer Lucas Mills Screenwriter Rich Dahm Screenwriter Matt Smith Writer Stephanie Streisand Screenwriter Todd Grimes Executive Producer Kevin Peaty Director Michael Pattison Producer